LTST-S326KGJRKT - Dual-Color Side-View SMD LED | Lite-On
부품 번호: LTST-S326KGJRKT ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0.24 | $0.24 |
| 10 | $0.2 | $2.00 |
| 100 | $0.16 | $16.00 |
| 500 | $0.13 | $65.00 |
| 1,000 | $0.11 | $110.00 |
LTST-S326KGJRKT 개요
An indicator LED is a semiconductor light-emitting diode used as a discrete visual or status signal in electronic equipment. Single-color and dual-color discrete LEDs sit at the lowest tier of the optoelectronic hierarchy (LED indicator -> standard LED -> optoelectronic component -> semiconductor device) and serve as the simplest optical interface between a circuit and a user. The LTST-S326KGJRKT combines two independently drivable color dice in one side-view package, which makes it a space-efficient dual-state indicator without requiring two separate SMD footprints.
Key features of the LTST-S326KGJRKT include a side-looking optical axis designed for edge-lit backlighting of LCD panels, a luminous intensity of approximately 35 mcd for green and 25 mcd for red, and full compatibility with 8 mm tape-and-reel automatic placement equipment. It supports both infrared and vapor-phase reflow soldering processes, has EIA-standard IC-compatible packaging, and conforms to the RoHS green-product directive. The molded SMT construction uses a 2-SMD, no-lead termination style.
From a technical perspective, the LTST-S326KGJRKT integrates an AlInGaP red emitter and an InGaN or AlInGaP green die in a single molded body. Each color is biased independently through its own anode and cathode, so the indicator can show green, red, or any mixed hue between by adjusting the relative drive currents. The side-view optical design places the emitting surface on the package's narrow edge, allowing the device to be placed flat against an LCD's light-guide input without obstructing the display area.
Typical applications include status indicators in cordless and cellular phones, notebook computers, network equipment, home appliances, and indoor signboard backlighting. The dual-color capability supports multi-state alerts such as charging (red) versus fully charged (green), and the side-view geometry is well matched to edge-lit LCD modules.
When designing with this part, observe the standard LED drive method: place a current-limiting resistor in series with each color channel and avoid paralleling multiple LEDs without per-string resistance. The 7-inch reel EIA packaging supports standard pick-and-place assembly lines.
This page synthesizes distributor pricing, parametric data, and drop-in alternatives into a single reference that goes beyond the manufacturer datasheet's raw tables.
드롭인 대체품: LTST-S326KGJRKT — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
LTST-S326KFJRKT
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
LTST-S326TBJRKT
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
LTST-S326KGKFKT
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
AAAF3528SESCGRK
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AAAF3528ESGC
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
APT2012LZGCK
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
LTST-S326KGJRKT 사양
| Manufacturer | Lite-On Technology Corporation |
| Part Number | LTST-S326KGJRKT |
| Product Type | LED Indication - Discrete (dual-color) |
| Color | Green / Red |
| Wavelength - Dominant (Green) | 571 nm |
| Wavelength - Dominant (Red) | 631 nm |
| Forward Voltage (Vf) Typ. | 2 V (per color, at 20 mA) |
| Test Current | 20 mA |
| Luminous Intensity (Green) | 35 mcd (typical) |
| Luminous Intensity (Red) | 25 mcd (typical) |
| Viewing Angle | 130 degrees |
| Lens Style | Water Clear |
| 실장 유형 | Surface Mount (side-view) |
| 패키지 / 케이스 | 2-SMD, No Lead |
| Package Dimensions | 3.00 (L) x 2.00 (W) x 1.00 (H) mm |
| 동작 온도 | -55 C to +85 C |
| Packaging | 8 mm Tape on 7 inch Reel |
| Solder Process | Infrared and Vapor Phase Reflow Compatible |
| Chip Technology | Ultra-bright AlInGaP |
| RoHS | Compliant |
LTST-S326KGJRKT 핀 구성
| 핀 1 | Anode (Green) — Anode of green die |
| 핀 2 | Cathode (Green) — Cathode of green die |
| 핀 3 | Anode (Red) — Anode of red die |
| 핀 4 | Cathode (Red) — Cathode of red die |
일반적인 애플리케이션
LTST-S326KGJRKT 적합 용도: 7 애플리케이션s: LCD Edge-Lit Backlighting, Mobile Phone and Notebook Indicator, Home Appliance Status Display, Network Equipment Link/Activity Indicator, Indoor Signboard Backlight, Cordless Phone and Portable Audio Indicator, Industrial Control Panel Status.
LCD Edge-Lit Backlighting
The LTST-S326KGJRKT's side-view optical axis is purpose-built to feed light directly into a light-guide plate positioned at the edge of an LCD module. Its 3.0 x 2.0 x 1.0 mm low-profile body fits the narrow bezel between the LCD glass and the device housing. The 571 nm green and 631 nm red channels can be mixed to produce white point backlighting for small color LCD panels, or driven independently for notification-style monochrome backlights. Compared to a top-emission LED, the side-view approach saves vertical stack height and avoids obstructing the display aperture. Designers typically place the part adjacent to one edge of the light guide with a current-limiting resistor on each channel.
추천
Mobile Phone and Notebook Indicator
The LTST-S326KGJRKT's dual-color capability suits status indicators in mobile phones, notebooks, and portable electronics where a red LED signals charging and a green LED signals complete. The 35 mcd green and 25 mcd red outputs are visible under indoor lighting without overdriving, while the 2 V Vf at 20 mA keeps total drive power under 80 mW per color. The 8 mm tape and 7-inch reel format supports standard pick-and-place assembly lines used in phone manufacturing. Engineers wire each color to a GPIO-controlled transistor with a current-limiting resistor; the side-view geometry allows the LED body to sit inside the device bezel without raising z-height.
추천
Home Appliance Status Display
Network and home appliance equipment uses the LTST-S326KGJRKT for multi-state alerts such as 'power on' (green), 'fault' (red), or 'standby' (alternating). The 130-degree viewing angle ensures the indicator is visible from multiple operator positions across a kitchen counter or equipment rack. Each channel operates independently, so a microcontroller can pulse-width-modulate the LED for soft-blinking alerts or steady-on state. The 2-SMD no-lead construction survives standard wash and reflow processes for consumer white-goods assembly. Thermal performance is excellent because the indicator dissipates under 100 mW total at full dual-color drive.
추천
Network Equipment Link/Activity Indicator
Network switches, routers, and modems commonly use dual-color LEDs to indicate link state (green for active link) versus error or speed fallback (red for 10M versus green for 1G). The LTST-S326KGJRKT provides these two channels in a single 3.0 x 2.0 mm side-view package, reducing the PCB footprint versus two discrete single-color LEDs. The 20 mA drive current matches the output of typical Ethernet PHY LED driver pins directly with a series resistor. The 130-degree viewing angle covers the wide range of operator sight lines in a 19-inch rack. RoHS compliance and halogen-free materials support environmental requirements for enterprise networking hardware.
추천
Indoor Signboard Backlight
The LTST-S326KGJRKT is specified for indoor signboard backlighting where individual color pixels illuminate translucent panels or edge-lit acrylic lettering. The 35 mcd green and 25 mcd red outputs are sufficient for short-throw indoor viewing distances, and the dual channels support gradient blends through independent PWM duty-cycle control. The side-view emission pattern allows LEDs to mount along the perimeter of a sign without obstructing the printed face. Engineers typically array multiple LTST-S326KGJRKT devices along an edge bar, each driven by a shift-register LED driver, sharing a single resistor network per row to minimize component count.
추천
Cordless Phone and Portable Audio Indicator
Cordless phones, portable radios, and Bluetooth speakers rely on the LTST-S326KGJRKT for compact multi-state indicators (mute red / active green / pairing amber blend). The 2 V Vf and 20 mA drive match Li-ion battery supply rails with a single series resistor per channel. The RoHS-compliant molded housing withstands daily handling, and the operating range of -55 C to +85 C covers both desk-side and outdoor portable use. The 8 mm tape format supports the high-volume automated assembly lines used in consumer audio manufacturing. The side-view profile allows the LED to sit behind a translucent speaker grille without blocking the acoustic path.
추천
Industrial Control Panel Status
Industrial HMIs and control panels use the LTST-S326KGJRKT for run/fault/stop indicator clusters on DIN-rail equipment and panel meters. The 130-degree viewing angle provides visibility across a wide operator zone, and the dual-color output differentiates 'normal' (green) from 'fault' (red) in a single LED position. The 2-SMD no-lead construction resists vibration in motor-control cabinets, and the AlInGaP chip technology provides long operational life at industrial duty cycles. Two-wire control from a PLC output with a series resistor per channel keeps wiring simple. Designers can also mix both channels for an amber 'warning' state by driving simultaneously.
추천
추천 제품 요약
엔지니어링 참조 데이터: LTST-S326KGJRKT — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | LTST-S326KFJRKT | LTST-S326TBJRKT | LTST-S326KGKFKT | AAAF3528SESCGRK |
|---|---|---|---|---|---|
| Brand | Lite-On | Lite-On | Lite-On | Lite-On | Kingbright |
| Package / Case | 2-SMD, No Lead (3.0 x 2.0 x 1.0 mm) | 2-SMD, No Lead (3.0 x 2.0 x 1.0 mm) - same | 2-SMD, No Lead (3.0 x 2.0 x 1.0 mm) - same | 2-SMD, No Lead (3.0 x 2.0 x 1.0 mm) - same | 2-SMD, No Lead (3.5 x 2.8 x 1.0 mm) |
| Color | Green / Red | Different green/red pairing | Blue / Red | Green / Green | Green / Red |
| Forward Voltage (Vf) Typ. | 2 V | 2 V | 2 V | 2 V | 2 V |
| Test Current | 20 mA | 20 mA | 20 mA | 20 mA | 20 mA |
| Viewing Angle | 130 degrees | 130 degrees | 130 degrees | 130 degrees | 120 degrees |
| RoHS Compliance | Compliant | Compliant | Compliant | Compliant | Compliant |
주요 차별점
- Same-footprint side-view family breadth (vs LTST-S326KFJRKT)
- Side-view emission specifically designed for LCD backlight (vs Top-emission SMD LEDs (e.g., 0603 standard))
- AlInGaP chip technology for red channel (vs Standard GaAsP red LEDs)
- EIA-standard IC-compatible packaging (vs Non-EIA LED packages)
설계 노트
Always place a current-limiting resistor in series with each color channel of the LTST-S326KGJRKT; the LED is a current-driven device and direct connection to a voltage source will damage it. Drive Method A in the Lite-On datasheet shows one resistor per channel - do not parallel multiple LEDs on a single resistor because intensity will vary between devices. For 5 V logic drive, use approximately 150 ohms per channel; adjust based on actual Vf of the lot.
Mount the LTST-S326KGJRKT with its narrow side (light-emitting edge) facing the target light-guide or viewer. The 3.0 x 2.0 x 1.0 mm land pattern should follow the recommended footprint in the datasheet, with reflow-compatible pad finishes (typically ENIG or OSP). Both IR and vapor-phase reflow profiles are supported per the datasheet; a peak temperature below 260 C is recommended to avoid damaging the molded body.
For PWM dimming of the LTST-S326KGJRKT, use a switching frequency above 100 Hz to avoid visible flicker. Keep the rise time of the drive transistor fast enough to prevent partial-color emission during the switching edge. If mixing both channels to produce an intermediate color (for example amber), account for the different luminous intensities of the green and red dice by adjusting duty cycles accordingly; the 35 mcd green and 25 mcd red outputs do not produce a perfectly balanced amber at equal currents.
The LTST-S326KGJRKT dissipates approximately 40 mW per channel at 20 mA and 2 V Vf, or 80 mW total when both dice are active. This low power dissipation means no additional heatsinking is required. However, the operating temperature ceiling of 85 C limits use in unventilated enclosures near heat sources; verify junction temperature by measuring ambient air within 5 mm of the package during qualification.
규정 준수 정보
RoHS compliance and lead-free confirmed per Lite-On datasheet and DigiKey product page. REACH and halogen-free status not explicitly stated in the available data and are marked unknown. AEC-Q100 is not applicable for a standard LED indicator.
